Eviction of histones will cause adecrease in the compaction of the genomic DNA and therefore lead to increased transcription. O True O False

Q: Give at least one example of a chromosomal structureor function affected by the following mechanisms…

A: Chromosomes are thread-like structure of nucleic acids and protein, which are found in the nucleus…

Q: Which of the following statements correctly describes the structure of chromatin around the promoter…

A: Chromatin is a complex of DNA and protein found in eukaryotic cells.

Q: Which of the following terms is used for the various forms of any one a) Autosomes b ) Codons c)…

A: Genes have a variety of different forms which are located at the same position or can be called…

Q: Histones are thought to be displaced as RNA polymerase is transcribing a gene. What would the…

A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…

Q: Typically, increased acetylation and decreased methylation of histone N-terminal tails in…

A: Histone acetylation and deacetylation are the processes by which the lysine deposits inside the…

Q: Replacement of histones with variant histones will cause an increase in the compaction of the gell…

A: Answer: Histone : These are the Octameric proteins around which DNA winds to form a structural unit…

Q: Which of the following types of epigenetic changes may promote cancer?a. DNA methylationb. Covalent…

A: Epigenetics represents one of the merging fields of biology concerned with the study of heritable…

Q: True or False.  De-acetylation of histone tails allows nucleosomes to pack together into tighter…

A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…

Q: During transcription, how many RNA nucleotide bases would usually be encoded by a sequence of 99 DNA…

A: Transcription is the first step of making a protein from DNA instructions. The human genome is made…

Q: Acetylation of positively charged amino acids within histone tails loosens their attachment to DNA…

A: The central dogma of molecular biology represents the flow of genetic information from DNA to RNA to…

Q: The following is true about epigenetic gene control: O epigenetic changes to the chromatin may…

A: Epigenetics is that the study of however your behaviors and surroundings will cause changes that…

Q: cell is homozygous for a LOF mutation in the histone acetyltransferase (HAT) gene. Which of the…

A: HAT stands for Histone acetyl transferase. The LOF refers to the loss of function mutation. If a…

Q: What is the effect of histone acetylation? O the destruction of the histone O the tightening of the…

A: Histone acetylation is a process in which the side chain of the positively charged amino acids…

Q: HATS O place phosphate groups on histones O Place acetyl groups on histones O make regions less…

A: The mechanism for acetylation and deacetylation takes place on the NH3+ groups of lysine amino acid…

Q: DNA methylation is associated with: OA gene repression. O B. neither gene transcription nor gene…

A: DNA Methylation is one of the processes of histone modifications that falls under the field of…

Q: A segment of a chromosome that regulates a gene located on the same chromosome is called a O…

A: Chromosomes are compact structures made up of DNA and protein.

Q: the diploid somatic nucleus of xenopus has 900 copies of rDNA and in the mature oocyte it could…

A: Transcription is a process in which DNA is converted to RNA.

Q: The abortive transcription occurs Select one: O a. When transcription is terminated. O b. during…

A: Answer. Transcription is a process of formation of of RNA transcript. It takes place by the usual…

Q: Chromatin remodeling is affected by two processes, DNA methylation and a. base substitution b.…

A: Chromatin remodeling is the dynamic modification of chromatin architecture to allow access of…

Q: In studies on chromatin it has been reported that DNA that is being actively transcribed is more…

A: DNA- “deoxyribonucleic acid” is a complex structure that carries the unique genetic code of every…

Q: In differential translation, a different transcript may be recovered depending on which TATA box is…

A: Mutation refers to both the process of altering a gene or chromosome and the outcome of that…

Q: Methylated cytosines

A: Answer:

Q: Choose the correct answer. The primer bind the 16S TDNA in one of its conserved / variable regions.

A: 16S ribosomal RNA is composed of RNA of the 30S subunit of a prokaryotic ribosome. They have two…

Q: Which of the following statements about methylation and acetylation is correct? A. Genes that have…

A: Introduction Deacetylation is the removal of an acetyl group and occurs on a plethora of targets and…

Q: Histone methylation alters the chromatin structure with varied effects depending on the specific…

A: Chemical modification of all histone proteins occurs. The modification that occurs at histone…

Q: Can one transcription factor sometimes act as a repressor and sometimes act as an activator? O a.…

A: We are authorized to answer only one question at a time, since you have not mentioned which question…

Q: Most regulators of transcription in both pro- and eukaryotic sterically fit and hence bind to which…

A: Transcription regulation is the means by which a cell regulates the conversion of DNA to RNA,…

Q: In Tetrahymena, the removal of the single intron in the rRNA precursor does not involve a protein. O…

A: Central dogma includes three steps of transfer of genetic information which are replication,…

Q: Which of the following sequences would likely bind a repressor if double stranded? O TGATCA O TGAGCA…

A: Introduction: Repressor: Repressors are proteins that will have a negative effect on gene…

Q: Transcription factors are allowed to enter and exit the nuclease at all times. 1 A▾ B I U S X₂ x² $$…

A: The above statement is true.

Q: When a chromosomal rearrangement, such as an inversion, places a known gene into or next to a…

A:

Q: Both statements are false. I. Adding acetyl groups in the histone tail restricts access to genes.…

A: Introduction:- Histones: In chromosomes, there is a type of protein called chromosomal protein.…

Q: In eukaryotes, transcription factor activators bind to their enhancer elements and interact with RNA…

A: Transcription factors These factors are responsible for the process of transcription. These proteins…

Q: Histone H1 O is part of the core particle O represses transcription both a and b O none of the above

A: Histone proteins are extremely basic proteins that form the structure, called as Nucleosome.…

Q: asic amino acids including lysine. DNA and histones collectively form chromatin. Open open and…

A: Histones can be defined as the family of basic proteins that are associated with the DNA in the…

Q: Which region of chromatin is transcriptionally silent?a) Nucleoidb) Centromerec) Euchromatind)…

A: Deoxyribonucleic acid (DNA) is a molecule composed of two polynucleotide chains. It coils around…

Q: Discuss histones and how methylation and acetylation of DNA and histones can affect the production…

A: Histone modifications are related to the structural changes that mainly happen during the time of…

Q: In the process of differentiation, much of what the cells has access to in its genome is shut off.…

A: DNA methylation is the process that adds a methyl group to the cytosine base at the C5 position and…

Q: . Dosage compensation is necessary because a. some regions of the genome contain more genes than…

A: Introduction : Heterochromatin is the darkly stained part of chromatin. The heterochromatin is…

Q: Suppose histones had a high percentage of negatively charged amino acids. What do you predict would…

A: Histones are the packaging proteins that bind to DNA.

Q: Gene expression in mammals can be increased by which of the following mechanisms?…

A: Nucleosome is the packaging unit in eukaryotes. It is a fundamental subunit of chromatin.…

Q: If an organism's cells were to not want a specific sequence of DNA transcribed for a long period of…

A: The regulation of gene expression at the level of DNA and protein is known as DNA- protein…

Q: If the genome structure exists in the form of heterochromatin, this indicates that the cell is------…

A: Chromosomes are highly condensed DNA structures that contain all the genes of the organisms. The…

Q: Histone H1: a) makes up the core particle  b) associates with linker DNA c) is not present in the…

A: Deoxyribonucleic acid (DNA) stores the cell’s genetic information and is present in the nucleus of…

Q: The mechanism of activation of eukaryotic genes involves addition and removal of phosphate residues…

A: The eukaryotic system has a general trend of activating anything by phosphorylation and vice versa.…

Q: Eukaryotic gene transcription can be regulated by attenuation. O True False

A: Attenuation is an regulatory component found all through Archaea and Bacteria causing untimely end…

Q: Methyl groups added to cytosine bases on DNA.. O Increase transcription of the methylated genes. O…

A: Introduction Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil…

Q: . It has been proposed that nucleosomes must be removed in order for transcription to proceed…

A: Chromatin : It is the material that makes up a chromosome the consists of DNA and protein. The major…